body {
    background-color: rgb(246, 246, 246);
}

/* header部分 */
header {
    /* display: none; */
    position: fixed;
    top: 0;
    width: 100%;
    height: 52px;
    background-color: #fff;
    box-shadow: -1px 2.5px 3.5px -3px rgba(0, 0, 0, .3);
}

/* 通栏 */
.wd {
    position: relative;
    width: 1202px;
    height: 52px;
    padding-left: 16px;
    padding-right: 30px;
    margin: 0 auto;
}

@font-face {
    font-family: 'icomoon';
    src: url('../icomoon/fonts/icomoon.eot?1lv3na');
    src: url('../icomoon/fonts/icomoon.eot?1lv3na#iefix') format('embedded-opentype'),
        url('../icomoon/fonts/icomoon.ttf?1lv3na') format('truetype'),
        url('../icomoon/fonts/icomoon.woff?1lv3na') format('woff'),
        url('../icomoon/fonts/icomoon.svg?1lv3na#icomoon') format('svg');
    font-weight: normal;
    font-style: normal;
    font-display: block;
}

/* 知乎logo */
.logo {
    float: left;
    width: 64px;
    height: 30px;
    margin-top: 8px;
}

.logo img {
    width: 100%;
}

/* 导航栏部分 */
.nav {
    float: left;
    margin-left: 20px;
}

.nav li {
    float: left;
    height: 50px;
    line-height: 50px;
    padding: 0 15px;
}

.nav li a {
    color: #8590A6;
    font-size: 15px;
}

.nav li .current {
    color: black;
    font-size: 15px;
    font-weight: 700;
    border-bottom: 4px solid #0066FF;
    padding: 14px 0;
}

.nav li a:hover {
    color: black;
}

/* 搜索框 */
.search {
    float: left;
    position: relative;
    width: 400px;
    height: 34px;
    border: 1px solid #ebebeb;
    background-color: #F6F6F6;
    padding: 4px 0 4px 16px;
    margin: 8px 0 0 70px;
    border-radius: 17px;
}

/* input框未点击状态 */
.search .ipt-normal {
    width: 340px;
    height: 24px;
    line-height: 24px;
    font-size: 14px;
    background-color: transparent;
}

.ipt-normal::placeholder {
    color: rgb(133, 144, 166);
}

/* 点击后的input框 */
.ipt-click {
    width: 390px;
    height: 24px;
    line-height: 24px;
    font-size: 14px;
    background-color: transparent;
}

/* 点击后的搜索模块 */
.search-click {
    position: relative;
    width: 450px;
    height: 34px;
    border: 1px solid #999;
    background-color: #Fff;
    padding: 4px 0 4px 16px;
    margin: 8px 0 0 70px;
    border-radius: 17px;
}

.search .max {
    position: absolute;
    top: 5px;
    right: 6px;
    background-color: transparent;
    width: 30px;
    height: 24px;
}

/* 放大镜图标 */
.search .max::after {
    font-family: 'icomoon';
    content: '\e913';
    color: rgb(133, 144, 166);
    font-size: 16px;
    padding-top: 5px;
}

.max-blue {
    position: absolute;
    top: 5px;
    right: 6px;
    background-color: transparent;
    width: 30px;
    height: 24px;
}

/* 点击后的放大镜图标 */
.max-blue::after {
    font-family: 'icomoon';
    content: '\e913';
    color: rgb(15, 111, 255);
    font-size: 16px;
    padding-top: 5px;
}

/* button提交按钮 */
.submit {
    float: left;
    width: 70px;
    height: 34px;
    line-height: 34px;
    border-radius: 17px;
    color: #fff;
    font-size: 14px;
    background-color: rgb(0, 102, 255);
    margin: 8px 0 0 12px;
}

/* 通知消息大盒子 */
.notice {
    float: left;
    padding: 17px 10px 0 60px;
}

.fl {
    float: left;
}

.answer,
.message,
.icon {
    width: 22px;
    height: 22px;
    margin: 0 15px;
    outline: none;
    /* cursor: pointer; */
}

/*  回答字体图标*/
.answer::after {
    font-family: 'icomoon';
    content: '\e90a';
    color: rgb(133, 144, 166);
    font-size: 18px;
}

/* 提问回答框 */
.answer-content {
    display: none;
    position: absolute;
    top: 54px;
    right: 14px;
    width: 360px;
    height: 439px;
    background-color: #FFF;
    border-radius: 5px;
    border: 1px solid #ebebeb;
}

.answer-footer {
    height: 40px;
    line-height: 40px;
    border-top: 1px solid rgb(235, 235, 235);
}

.answer-footer .set::before {
    font-family: 'icomoon';
    content: '\e900';
    color: rgb(133, 144, 166);
    font-size: 16px;
    vertical-align: middle;
    padding: 0 2px;
}

.message::after {
    font-family: 'icomoon';
    content: '\e96d';
    color: rgb(133, 144, 166);
    font-size: 18px;
}

/* 消息通知框 */
.message-content {
    display: none;
    position: absolute;
    top: 54px;
    right: -35px;
    width: 360px;
    height: 439px;
    background-color: #FFF;
    border-radius: 5px;
    border: 1px solid #ebebeb;
}

/* 三角 */
.message-content::before,
.answer-content::before {
    position: absolute;
    top: -9px;
    left: 170px;
    content: '';
    width: 18px;
    height: 18px;
    border-top: 1px solid #ebebeb;
    border-left: 1px solid #ebebeb;
    background-color: #FFF;
    transform: rotate(45deg);

}

.message-title,
.answer-title {
    text-align: center;
    height: 48px;
    line-height: 48px;
    border-bottom: 1px solid rgb(235, 235, 235);
    color: #121212;
    font-size: 14px;
}

/* 提问回答标题 */
.answer-title button {
    padding: 0 40px;
    background-color: transparent;
}

.answer-title .string {
    color: rgb(235, 235, 235);
}

.answer-title button {
    font-family: 'icomoon';
    color: rgb(133, 144, 166);
    font-size: 15px;
}

.btn-blue {
    color: rgb(0, 102, 255) !important;
}

.message-list,
.answer-list， {
    height: 350px;
}

.answer-list-2 {
    display: none;

    position: relative;
    height: 350px;
    line-height: 350px;
}

.answer-content .answer-list-2 img {
    width: 94px;
    height: 84px;
    margin-left: 140px;
}

.answer-list-2 p {
    position: absolute;
    top: 53px;
    left: 150px;
    color: #859086;
    font-size: 15px;
}

.answer-list-3 {
    display: none;
    height: 350px;
    padding: 0 15px;
}

.answer-list {
    height: 350px;
    padding: 0 15px;
}

/* 提问回答内容 */
.answer-list-item {
    padding: 15px 0;
    font-size: 14px;
    border-bottom: 1px solid rgb(235, 235, 235);
}

.answer-list-item em {
    font-style: normal;
    margin: 0 6px;
}

.answer-list-item a {
    font-size: 14px;
    color: #175199;
    margin: 0;
    padding: 0;
}

.message-list li {
    height: 74px;
    padding: 15px;
}

.message-list li:hover {
    background-color: rgb(246, 246, 246);
}

.message-list li img {
    width: 40px;
    height: 40px;
    margin: 0 18px 0 0;
}

.list-user-name {
    font-size: 15px;
}

.list-content {
    font-size: 14px;
    color: rgb(144, 154, 174);
}

.message-footer {
    height: 40px;
    line-height: 40px;
    border-top: 1px solid rgb(235, 235, 235);
}

.message-footer a,
.answer-footer a {
    color: #8590A6;
    font-size: 14px;
    margin: 0 10px;
}

.message-footer .write-message::before {
    font-family: 'icomoon';
    content: '\e90c';
    color: rgb(133, 144, 166);
    font-size: 14px;
    vertical-align: middle;
    padding: 0 4px;
}

.notice img {
    width: 30px;
    height: 30px;
    margin: -5px 0 0 10px;
}

/* 用户部分内容 */
.icon-content {
    display: none;
    position: absolute;
    top: 54px;
    right: 10px;
    width: 118px;
    height: 156px;
    padding: 6px 0;
    background-color: #FFF;
    border-radius: 5px;
    border: 1px solid #ebebeb;
}

.icon-content::before {
    position: absolute;
    top: -6px;
    left: 50px;
    content: '';
    width: 12px;
    height: 12px;
    border-top: 1px solid #ebebeb;
    border-left: 1px solid #ebebeb;
    background-color: #FFF;
    transform: rotate(45deg);
}

.icon-content div {
    display: inline-block;
    width: 118px;
    height: 36px;
    line-height: 36px;
    color: #859086;
    font-size: 14px;
    margin: 0;
}

.icon-content div:hover {
    background-color: rgb(246, 246, 246);
}

.icon-content div::before {
    font-family: 'icomoon';
    color: rgb(133, 144, 166);
    font-size: 16px;
    padding: 0 5px 0 20px;
}

.icon-content div:nth-child(1)::before {
    content: '\e971';
}

.icon-content div:nth-child(2)::before {
    content: '\e90c';
}

.icon-content div:nth-child(3)::before {
    content: '\e900';
}

.icon-content div:nth-child(4)::before {
    content: '\f011';
}

/* 热搜、搜索历史模块 */
.hot {
    display: none;
    width: 450px;
    height: 420px;
    background-color: #fff;
    margin: 10px 0 0 -16px;
    border: 1px solid rgb(235, 235, 235);
    border-radius: 4px;
}

/* 热搜标题 搜索历史标题 */
.hottitle,
.search-history {
    font-size: 15px;
    color: rgb(155, 164, 182);
    height: 40px;
    line-height: 40px;
    margin: 0 10px;
    border-bottom: 1px solid rgb(235, 235, 235);
}

.hot li {
    height: 32px;
    line-height: 32px;
    padding: 0 10px;
}

.hot li:hover {
    background-color: rgb(246, 246, 246);
}

.hot li a {
    display: inline-block;
    width: 430px;
    height: 32px;
    line-height: 32px;
    color: rgb(18, 18, 18);
    font-size: 14px;
    padding-left: 5px;
}

/* 热搜字体图标 */
.hotup::before {
    font-family: 'icomoon';
    content: '\e908';
    color: rgb(238, 63, 63);
    font-size: 16px;
    margin-left: 6px;
}

.search-history {
    position: relative;
}

/* 删除 */
.delete {
    position: absolute;
    top: 13px;
    right: 2px;
    font-size: 14px;
    color: rgb(133, 144, 166);
    background-color: transparent;
}

.delete::before {
    font-family: 'icomoon';
    content: '\f014';
    color: rgb(133, 144, 166);
    font-size: 15px;
}

.del {
    float: right;
    margin-top: 6px;
    font-size: 22px;
    color: rgb(133, 144, 166);
    font-weight: 400;
    background-color: transparent;
}